tKfje ^ftoboDenliron ^ocietp i^otesi. 
campanulatum robustum, also Rh. Thomsoni x Rh. caucasicum, and Rh. 
arboreum album x Rh. caucasicum. All these are very good. 
I think it is obvious that many of the light coloured Rhododendrons now 
common in gardens are crosses of Rh. caucasicum. Such as “ Snowball,” ” The 
Bride," ” caucasicum pictum,” “ Cunningham’s White.” 
A Rhododendron from Comely Bank, Edinburgh, called Rhododendron 
sulphureum is said to be a hybrid between Rhododendron caucasicum and 
Rhododendron arboreum album. 
In my opinion, this plant is not a hybrid, but a seedling variety of 
Rhododendron caucasicum. 
I believe J. C. Williams has some large plants of Rh. caucasicum stramineun 
X Rh. campylocarpum. My plants of the same cross are smaller. It will be 
of interest to put on record the early ripening of this seed. 
In this climate Rhododendron seed is usually ripe in early spring, but in the 
middle of October I found the seed pods open, and about half the seeds gone. 
This would be four to five months earlier than I should have expected to find 
ripe seed. This is the only case of the kind which has occurred here. 
Some years ago I raised a large batch of seedlings of Rh. ochroleucum (which 
is a hybrid of Rh. caucasicum), and Rh. Aucklandi. The notable point about 
this batch is its extreme unevenness. 
Some are fine plants, of vigorous growth, handsome foliage and large loose 
truss. 
Other plants of the same batch are miserable things, with thin yellow foliage 
and stunted growth. 
After a sufficient trial these have been rooted up and thrown away, but the 
reason why they should differ from the others has not been discovered. 
EDMUND GILES LODER. 
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